Adjustable door stop



Oct. 26, 1937. L, 1 SLADEK 2,097,349

`ADJUSTA BLE DOOR STOP Filed Nov. 6, 1935 Patented Oct. 26, 1937 Nrs Tsi

Appiication November 3 Claims.

This invention relates to improvements in door stops and has specialreference to improvements in stops which are adjustable as to length.

The object of the invention is to provide a door stop of the inclinedlever type which can be readily adjusted as to length Without removingany part; in which no screw will be expose-d to view; in which theadjusting member will be permanently attached to the lever; in which theshoe shall be readily removable for replacement; and which will have avery simple yielding means for retaining the lever in non-operative orraised position.

A further feature relates to the construction is exposed in plain viewand is preferably slotted to receive a screw-driver for ready and easyrotation.

The exposure of the slotted end or head of the adjusting member is aplain and comprehensible suggestion to any one desiring to adjust thestop as to length, as to just how it can be done and eliminates thenecessity of special instructions, which in most cases, cannot be foundwhen the necessity of adjustment occurs.

Another feature resides in the fact that when the stop lever is inoperative position, that is dropped down to contact the iioor, theadjusting member is vertical and the exposed slotted head is in plainview and the adjusting member stands vertically with the lower floorcontacting end of the shoe flat against the iioor. If the shoe does notthus contact the floor it plainly indicates that the length of the stopshould be adjusted and the slotted head of the adjusting member, beingin plain view at the top of the vertical lower part of the stop, clearlyindicates the way in which and ease with which the stop can be changedas to length to make the lower end contact the floor A properly.

. The invention will be more readily and clearly understood by referenceto the accompanying drawing, illustrating a preferred embodiment oi theinvention when taken in conjunction with the following description andthe appended claims.

In said drawing:-

, Figure 1 is a side elevation showing the lever in operative positionin full lines and in raised or inoperative position in dotted lines;

` Figure 2 is a front view of the stop with the lever shown in operativeposition;

Figure 3 is a top plan view of the stop;

Figure 4 is an enlarged fragmentary, vertical, 55 central section on theline 4 4 of Fig. 2;

by which one end of the adjusting memberq- 6, 1935, Serial N0. 48,530

Figure 5 is an enlarged fragmentary, vertical, central section on theline 5-5 of Fig. 2, and indicating by dotted lines that the stop can bechanged as to length by adjusting the shoe up or down;

Figure 6 is a horizontal section on the line 6 5 of Fig. 5; and

Figure '7 illustrates the split spring washer which is used to securethe adjusting member in place.

As shown, this improved stop consists of two main members, a bracketmember I by which theI stop can be secured to a door l i by screws l2,and a lever I3.

The lever i3 is pivotally mounted at one end on the bracket iii by ahorizontal pivot I4 received in ears E 5 projecting from a base I6. Theupper end of the lever is received between the ears i5 and the lever ismounted on the pivot lli to swing up to inoperative position as shown inFig. 1 in dotted lines or down into operative position as shown in fulllines.

In operative position the lever is intended to be inciined in relationto the door Il as shown in Fig. l, to brace the door against movement inone direction. The stop is commonly used to hold a door in openposition.

The lower end i3 of the lever I3 is formed into a cylindrical boss itextending vertically, that is at an inclination to the body of the leversuiiicient to set it vertically when the lever is in proper operativeposition.

The boss i9 is extended below the lower end of the lever as shown at2i), and such extension is cylindrical in shape. The boss and itsextension is provided with a longitudinal vertical bore 2i which extendsupward from its lower end to a point adjacent to the topof the boss i9.This construction provides a flange 22 closing the top of the bore 2lwhich is provided with a central opening 23 to receive the shank of anadjusting member or screw 24.

The adjusting member 2Q is rotatable in the boss and is held againstendvvise movement relatively thereto by means of the flange 22. The head25 of the screw 24 contacts with the outer side of the flange 22 and Iprovide a washer collar 26 for contact with the inner face of the iiange22.

The collar 26 is preferably, as shown, in the form a split lock washerand is received in a groove 2'? formed in the body of the screw justbelow the flange 22. Below the groove 2i the body oi the screw 2 isprovided with an integral circumferential collar 28 which is flat on itsupper surface for Contact with the spring collar 26 and is cone-shapedor tapered on its lower side to assist in assembling the spring washerwith the screw 24 when the screw is in place in the boss I9. Inassembling these parts of the device, the screw is placed in the boss I9with its head 25 in contact with the upper end of the boss, then thespring washer is inserted in the bore 2| on the threaded end of thescrew and pushed into contact with the fixed collar 28. Then a tubulartool is inserted and forced against the spring split washer withsufficient pressure to cause it to be expanded by the coned side of thecollar 25 and snap into place in the groove 21.

This construction locks the screw 24 in place preventing its removal,holds it against relative longitudinal movement and permits it to rotatefreely to accomplish its function in changing the length of the stop.

The head 25 of the screw 24 is preferably provided with a transverseslot 29 as shown to receive a screw-driverpoint when adjustment of thelength of the stop is desired. This screw head as shown, is in plainsight when the stop is in operative position', and preferably when thestop is properly adjusted to operative position, the screw 24 standsvertically.

The screw 24 as shown, is screw-threaded and is adapted to receive anelongated nut 33 provided with a longitudinal bore co-operativelyscrewthreaded. The nut 30, as explained, is an elongated member andslides freely up and down in the bore 2l of the boss I9, but isprevented from rotation therein preferably by being formed tocircumferentially engage the wall of the bore 2l. As shown, thiscircumferential engagement is provided for by making the nut 30 squarein crosssection and providing longitudinal grooves 3! in the wall of thebore 2| as best shown in Fig. 6,

The lower end of the nut 3! is provided with a head 32 preferably in theform of a horizontally extending flange flat on its bottom which is inposition to contact with the floor when the stop is in holding position.Preferably, however, I provide a semi-hard covering for the head 32preferably comprising a vulcanized on covering 33 which covers theflange head 32 completely and extends some distance up the body ofthenut member as shown.

Preferably, also, I make the upper end of the covering 33 in tubularform of a diameter to slide freely upon the outer cylindrical surface ofthe extension 2B of the boss I9 and thus conceal the space 34 betweenthe lowei end of the extension 20 and the covering 33.

The nut 39 with its vulcanized on covering 33 constitutes the shoe ofthe stop for contact with the floor and as described, this shoe cannotrotate. It can be adjusted up and down by means of the screw to changethe length of the stop as indicated in dotted lines in Fig. 5.

The spring washer which is split at one point as shown at 35 to permitit to expand in assembling it with the other parts, is also yieldablelongitudinally of the screw 24 and serves to hold the screw endwise witha slightly yielding pressure and to provide sufficient friction toprevent the screw being rotated except intentionally for changing thelength of the stop.

For yieldingly holding the lever III in its upper Y or non-operativeposition, I provide a yielding spring structure. The lever I3 ispreferably made of brass and is preferably nished and polished all overand the upper end I1 is preferably cylindrical in form having a smoothouter surface.

I provide a yielding stop fixed on the base I0 between the lugs I5 andpreferably comprising a steel ball 3S received in a hole 31 provided inthe inner side of the base. The hole 31 is closed at its bottom andserves as a container for a compression spring 38 behind the ball 36. Inassembling, the spring is first put in the hole 31 and the ball 35 isthen put in and the rim of the open end of the hole 31 is then formedinwardly sufficient to hold the ball from escaping and yet expose nearlyhalf of the ball.

To provide a socket on the end I1 of the lever to receive the ball forholding the lever in inoperative position, I preferably provide a socketmember 39 of harder metal, preferably steel, and insert it in a hole 4I)provided in the periphery of the end I1 of the lever. The socket memberis driven into the hole 4I! and is provided on its outer end with aspherical-like depression 4I to receive the ball 36. The exposed end ofthe socket member projects enough beyond the cylindrical surface of thelever end I1 to cause the ball 3B to be pressed into the socket when inengagement therewith, the ball being Yheld back suiiciently to preventits contact with the cylindrical surface of the lever end I1. To causethe ball to be pushed back against the spring pressure when passing intoengagement with the socket 39, the outer edge 42 of the exposed end ofth'e socket member 39 is slightly rounded or beveled as shown.

Preferably the base I3 is provided with one of the screws I2 locatedcentrally at the top and two of the screws I2 at its lower end, one ateach side. Such an arrangement of the holding screws is very effectivefor holding the base rmly in place and resisting the strains producedwhen it is attempted to swing the door against the holding action of thestop.

As many modifications of my invention will readily suggest themselves toone skilled in the art, I do not limit Yor confine my invention to thespecific details of construction and combinations of parts herein shownand described, except within the scope of the appended claims.

I claim:

1. In a door stop of the lever type, the lever provided with a hollowboss on its free end arranged to stand substantially vertically when thelever is in holding position, a shoe .member extending up both insideand outside of said boss and movable longitudinally thereof, anadjusting member extending through the boss and having a screw-threadedengagement with the shoe, means for holding said member against relativelongitudinal movement, means for holding the shoe against rotation andsaid adjusting member having its upper end exposed.

2. In a door stop of the lever type, the lever having a boss at its freeend provided with a central longitudinal opening, a shoe slidablymounted on the boss, a shoe adjusting member extending through saidopening and having screwthreaded engagement with the shoe, thearrangement being such that the upper end of the adjusting member isexposed, and the shoe having a portionV whichY extends up within saidcentral opening in the boss, means providing circumferential engagementbetween said. portion and said boss for preventing rotational movementof said shoe, the shoe comprising a central longitudinal memberincluding said upwardly extending portion and having an enlarged head atits lower end, and a slightly yieldable envelope covering the lower partof said member and having a.

tubular extension at its upper end adapted to slide over the lower endof said boss.

3. In a door stop of the lever type, the lever having a boss on its freeend and arranged to stand substantially vertically when the lever is inholding position, a shoe movable longitudinally on said boss, the bosshaving a central longitudinal bore, an internal integral flange at theupper end of the boss, a shoe adjusting member arranged to be insertedthrough said flange into said bore and having a head arranged to contactthe outer surface of said ilange, the adjusting

